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Post by leolion on Jul 7, 2008 8:30:27 GMT
Null observation of NLC on July 6/7 2008 twixt 22:38 & 22:53 UT. I had a clear slot between Az 310 to Az 50 and Capella just in & out of the cloud base. Unusual for me as normally cloud would be sat over where the phenomena should be (e.g. Venus transit in Cyprus - one cloud all week - over the sun at ingress !!  ). Would have prefferred an NLC display last night but it was not to be. |
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Post by markt on Jul 7, 2008 10:57:28 GMT
I think the important thing to realise is that the forum is a continually evolving beast... Last years season didn't see us reporting null observations, this year we have started - admitedly not a common format, but I would suspect in this years null observations their are some that can be used for scientific purposes. Like I say we're learning as we go along here - maybe for next season we'll all be reporting to a common form and format. We're a keen bunch who all work together so anything is possible  |
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Post by tmcewan on Jul 7, 2008 12:49:29 GMT
From what I can tell there are no detailed guidelines on this. At the moment I'd go with the recommendation in Mike Gadsden's handbook: 'It is important to record also the fact of absence of noctilucent cloud, when the observing conditions are good'. Some NLC observers do indeed include monthly weather reports from their observing site but I'd suggest leaving this optional, at the observer's discretion.
Tom
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Post by markt on Jul 8, 2008 6:24:59 GMT
Null obs for me 7/8 july - had the tiniest of slithers of northern horizon visible about 22.00ut - but no nlc visible then. Apart from that, rain, rain, and more rain, atleast it will do the garden good...
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Post by markt on Jul 9, 2008 6:19:57 GMT
Null obs 22.00ut 8th july, clear to the northern horizon nut no NLCs viisble. Clouded then rained out shortly thereafter...
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Post by markt on Jul 10, 2008 15:50:29 GMT
rain for me 9/10 july hence nothing visible  |
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Post by markwalters on Jul 20, 2008 0:14:53 GMT
Nothing visible for the evening of the 19th here in Powys, Wales between 21.15 - 22.30 UT Nice clear night too.
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Post by markt on Jul 20, 2008 8:06:09 GMT
Null observation from me from 21.00ut until 00.00ut. Clears skies but not a whiff of NLC. Did manage to view 2 passes of the ISS and some cracking views of Jupiter through the scope tho |
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Post by leolion on Jul 20, 2008 12:46:08 GMT
Null observation of NLC on July 19/20 2008 between 22:30 & 22:45 UT at Elland in West Yorkshire . Pity re the NLC as practically no cloud and a fairly transparent atmosphere with only the moon to contend with . As the moon gets away towards the end of this month visual and video meteor sessions should be under way .This should give me sufficient to keep me awake and alert !!! Len E
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Post by markwalters on Jul 20, 2008 22:16:22 GMT
Null observation for the evening of 20-7-08 between 21.00 and 22.10 UT from Four Crosses, Powys, Wales. Perfectly clear starry skies all the way to the western horizon, but no sign of the NLC's
Mark
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Post by markt on Jul 21, 2008 8:11:59 GMT
Nothing for me in the period 22.00-22.30ut on the vening of 20th july. Was far too tired to stay up any longer after this so can't comment on the rest of the night.
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Post by Jay on Jul 21, 2008 17:29:34 GMT
Clear skies but no NLC from 21:00-23:00UT from Hampshire 20-21st July
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Post by markwalters on Jul 21, 2008 22:39:18 GMT
Nothing here in Powys, Wales between 21.00 and 22.15 UT. Very clear skies in the west again all the way to the distant horizon.
Mark
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Post by markt on Jul 22, 2008 8:00:06 GMT
Nothing here on the evening of the 21st - from sundown till 23.00ut. Patchy cloud, but enough breaks to see if any NLC were there. Looks like Eastern Europe was favoured last night for NLCs!
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Post by markwalters on Jul 22, 2008 23:00:36 GMT
Nothing again for the evening of 22-7-08 between 21.00 and 22.00 UT. Some cloud on the western horizon, but plenty of clear slots to allow observation of NLC.
Mark
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